Home / 126,937.28-190,422.12-42,661.28

Finding the Fourth Proportional to 126,937.28, 190,422.12 and 42,661.28

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Solution

The fourth proportional to 126,937.28, 190,422.12 and 42,661.28 is: 63,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,937.28 : 190,422.12 = 42,661.28 : x
  2. Step 2: Convert to fraction form
    126,937.28/190,422.12 = 42,661.28/x
  3. Step 3: Cross multiply
    126,937.28x = 190,422.12 × 42,661.28
  4. Step 4: Simplify right side
    126,937.28x = 8,123,651,379.51
  5. Step 5: Solve for x
    x = 8,123,651,379.51/126,937.28
  6. Step 6: Final answer
    x = 63,997.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.